gathering user input with post (servlet, html)

From:

thufir <hawat.thufir@gmail.com>

Newsgroups:

comp.lang.java.help

Date:

Thu, 25 Sep 2008 14:33:25 GMT

Message-ID:

<ViNCk.183$4K3.7@newsfe13.iad>

For some reason I'm getting "null" for my user input (temp):

thufir@arrakis:~$
thufir@arrakis:~$
thufir@arrakis:~$ cat NetBeansProjects/lab3project/lab3/web/enterTemp.html
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD><TITLE>COMP 3631 Lab03</TITLE></HEAD>
<BODY><table align="left" ><tr><td align="right">temp</td><td >



    <input type="text" name="temp"/></td><br>from<br>

    <input type = "radio" name = "from"value = "fahrenheit" >
    fahrenheit<br><input type = "radio" name = "from"value = "celsius" >
    celsius<br><input type = "radio" name = "from"value = "kelvin" >
    kelvin<br><input type = "radio" name = "from"value = "rankine" >
    rankine<br><br><br>


    <form action="convert"method="post">
          <input type="submit" value="convert" class="btn"/>
      </form>
</tr>
</table>
</body>
</html>

thufir@arrakis:~$
thufir@arrakis:~$ cat NetBeansProjects/lab3project/lab3/src/java/a00720398/lab3/view/Converted.java

package a00720398.lab3.view;

import a00720398.lab3.beans.*;
import java.io.*;
import java.util.ArrayList;
import javax.servlet.*;
import javax.servlet.http.*;

@SuppressWarnings({"unchecked", "serial"})
public class Converted extends HttpServlet {

    @Override
    public void doPost(HttpServletRequest in,
            HttpServletResponse output)
            throws ServletException, IOException {
        doGet(in, output);
    }


    @Override
    public void doGet(HttpServletRequest request,
            HttpServletResponse response)
            throws ServletException, IOException {

        response.setContentType("text/html");
        PrintWriter out = response.getWriter();

        StringBuffer outputResponse = new StringBuffer();


        String temp = "99";
        temp = request.getParameter(temp); //how do I gather user input?

        int value = 999;
        //value = Integer.parseInt(temp);

        Temperature temperature = new Temperature(value, Unit.CELSIUS);

        outputResponse.append(temp); //why is this null?
        outputResponse.append(HTMLManager.addPageHeader("solution"));
        outputResponse.append(HTMLManager.addDataToOutput(new Temperature(value, Unit.CELSIUS), new
Temperature(32, Unit.FAHRENHEIT))); //mock data


        out.println(outputResponse.toString());
        out.close();

    }
}
thufir@arrakis:~$

thanks,

Thufir